Planet Mercury Facts

1. Mercury is the eighth largest planet (or second smallest) in the Solar System.

2. The orbital speed of Mercury is 47.8 km/sec

3. Mercury has no atmosphere and no known satellites, perhaps because of its proximity to the Sun.

4. The diameter of Planet Mercury is 4,878 km

5. The only visit to Mercury was a flyby made by the Mariner 10 spacecraft in 1974.

6. Mercury, often identified with the Greek god, Hermes, is the messenger of the gods in Roman mythology.

7. A year in Mercury is equal to 87.97 Earth Days

8. A day in Mercury is equal to 58.65 Earth Days

9. Mercury’s maximum distance from the Sun = 70 million km (43.5 million miles)

10. Mercury’s minimum distance from Earth = 77 million km (48 million miles)

11. Mercury is known as a terrestrial planet consisting of about 70% metallic and 30% silicate material.

12. Galileo first observed Mercury during the 17th century.

13. If you weigh 100 lbs, your weight on Mercury would be 38 lbs. (Multiply your actual weight by 0.38)

127 Responses to “Planet Mercury Facts”

  1. Unknown March 24th, 2010 at 5:25 pm

    hello my name is fred

  2. DOnt Worriie Bouhddt ihddt April 13th, 2010 at 1:09 pm

    Hey Mercuryy ii queszx lol…?’ Whuddt Yuh Been Upp Too Mercury…?’ There ihss Onlyiie Like 1 1/2 Days inna Year THere…!`

  3. Some1 April 16th, 2010 at 12:39 pm

    heyahhh i like mercury it is full of poopie

  4. liam May 4th, 2010 at 4:21 am

    mecury is awesome

  5. britten May 4th, 2010 at 7:13 pm

    that is great facts, but i am afriad i need more.

  6. jj May 12th, 2010 at 1:29 pm

    i have tons of facts from this

  7. Kaarththick May 12th, 2010 at 8:19 pm

    I was born in mercury, it is a place in kenton if you knoow where that is. (mercury means london)

  8. maria gonzalez May 17th, 2010 at 1:55 pm

    i will have my childrens there hahaha!!! lol

  9. poopie May 19th, 2010 at 7:38 pm

    yo! this is such lame facts ya know! i would get more facts if i went to mercury? any suggestions!!!

  10. Windigo May 20th, 2010 at 10:35 pm

    so what are all your cool facts?

  11. giovanni May 28th, 2010 at 7:16 pm

    come and visit the mercury! the hottest planet! the perfect vacations! this is a dedication

  12. mathew gonzalez June 11th, 2010 at 5:58 pm

    mann i need more ball sized planets

  13. me! June 14th, 2010 at 6:26 pm

    omg i have a project on the planets and this tells me notin important!!!!!!

  14. Unknown June 15th, 2010 at 5:42 pm

    Yoyo planets are awesome

  15. bob shit July 14th, 2010 at 1:52 pm

    planets are awsome dude i was born on there

  16. funk September 3rd, 2010 at 5:10 pm

    neat website

  17. aa September 21st, 2010 at 5:07 pm

    this is so…..

  18. abcdefghijklmnopqrstuvwxyz September 21st, 2010 at 5:09 pm

    i love this i got a a on my asiment

  19. Marana October 15th, 2010 at 5:32 pm

    I like Mercury thats all i’m going to say…. :/

  20. jls October 22nd, 2010 at 5:15 pm

    i need more facts for my science project

  21. Goting Howard October 24th, 2010 at 5:06 pm

    I am in love with this website.

  22. tye October 26th, 2010 at 2:44 am

    i think this planet is so cool.

  23. Miss Trish October 31st, 2010 at 9:31 pm

    These are fantastic facts, they will really help me on my Science project.

  24. Ketchup November 3rd, 2010 at 8:04 pm

    I whipe my hair back and forth.(:

  25. a bored kid November 3rd, 2010 at 8:05 pm

    i hav no i dea wat to do on this project fk the cropratte world XD

  26. Unknown November 4th, 2010 at 4:36 pm

    im on websites to see how good the games r and how borin they r.

  27. LOL XD November 10th, 2010 at 4:55 pm

    WOW, GR8 FACTS 4 MY HWK!

  28. mom November 16th, 2010 at 2:39 pm

    I live on uranus the planet

  29. None of yo buisness! November 16th, 2010 at 10:46 pm

    This is a good website! Helps me alot on my homework!!! :)

  30. DEDE LEE November 23rd, 2010 at 12:37 am

    HI ILOVE PLANETS. DON’T YOU? WOW THEY ARE AWSOME.BYB LOL!!!!!!!!!!!!!!!!!!!LOL!!!!!!!!!!!!!!!!!!!!!!!!!

  31. Sheyanne xoxo:) November 30th, 2010 at 6:45 pm

    I like jupiter, sumday ima gonna send my lil sis in the BIG RED SPOT!!! lol! ummmmmmm Din ima gonna send her to mercury! gosh she is soo anoying!!!

    Luv Ya!!

  32. josh December 1st, 2010 at 2:24 pm

    awsome

  33. josh December 1st, 2010 at 2:24 pm

    yo it is awsome

  34. madison December 9th, 2010 at 3:26 pm

    heey i was born in mercury to lol thats why i have a lump on my head because i fell off it lol lol lol lol

  35. Unknown December 9th, 2010 at 3:40 pm

    Planets are awesome! They are very interesting and ummmmm.

  36. Mickeymouse809(D)(A)(K)(O)T)(A)) January 4th, 2011 at 3:20 am

    murcury is not filled with poopie

  37. unkown January 6th, 2011 at 2:30 am

    mercury is an amazing planet. so many facts about it are right here, in front of your face. i am doing a scale model of the solar system and need to know facts about each planet. this is an amzing site cuz it givez u lots of info

  38. byrddawg January 6th, 2011 at 2:12 pm

    i need more facts

  39. byrddawg January 6th, 2011 at 2:13 pm

    i did get stuff off this website though

  40. amegouniverse January 7th, 2011 at 12:57 pm

    THERE ARNT MUCH FACTS! WHY ALL OF THEM ARE SIMPLE ONES WHICH I HAV LEARNED IN PRIMARY. ARNT THERE ANY MORE FACTS OTHER THAN THAT?

  41. ayushi January 8th, 2011 at 9:35 am

    i love mercury

  42. mickey January 12th, 2011 at 3:18 am

    You really need better facts like the history of Mercury. But I like the other planets facts.

  43. Doin Your Mom January 13th, 2011 at 2:14 am

    This has been a good website!! Love it! AMazing!!
    DOIN UR MOM!!!:))

  44. Marc January 18th, 2011 at 3:53 pm

    mercury can be seen from earth

  45. HEHE January 18th, 2011 at 8:06 pm

    dafdadddad

  46. Farrah hunt January 24th, 2011 at 9:31 am

    Awesome!!!! x

  47. da cool guy January 24th, 2011 at 2:19 pm

    dis is da beastest website ive ever seen in my whole life go 2
    P.S. not reallyy..!!!!!

  48. nick January 25th, 2011 at 4:43 pm

    hey
    pluto your cool

  49. Rachel January 28th, 2011 at 1:04 am

    Love this,using it for my project

  50. no name January 31st, 2011 at 4:44 pm

    babosos ! get a lifeeeeee !

  51. ur ass February 5th, 2011 at 12:54 pm

    i need more facts

  52. peanut butter February 14th, 2011 at 4:06 pm

    was very help ful but needs more alot more rrrrraaaaaawwrrrrrr i love u in dinosaur peanut buter

  53. mikey February 15th, 2011 at 6:30 pm

    cool

  54. unknown i won't say my name February 24th, 2011 at 7:29 pm

    hi peoples this was a good website but i agree not enough facts

  55. ales February 25th, 2011 at 2:33 am

    this helped me a lot on a project.thanks!

  56. unknown i won't say my name February 25th, 2011 at 6:56 pm

    me too to ales

  57. dom February 28th, 2011 at 5:26 pm

    lol this site sucks bad lol

  58. dooodoo March 4th, 2011 at 12:45 am

    this site sucks

  59. Your Mom March 7th, 2011 at 1:34 am

    hey i live on mercury it not that bad i know there maybe the odd cyclone or poo mountain but it’s ok

  60. Fred March 7th, 2011 at 1:36 am

    My mum lives on mercury and it is definitely not filled with poopie.
    It is actually made from mercurock.

  61. bobbie pin March 7th, 2011 at 12:04 pm

    my horse will take you around the universe and all the galaxies ;]

  62. idk March 7th, 2011 at 3:30 pm

    i wish i where mercery =D

  63. Jobble March 8th, 2011 at 12:12 am

    Pluto is just terrible!!!! It is just to small to have a real name. Any way it is a dwarf planet!!! WHAT THE HECK…….. it just doesn’t make sense to me.

  64. sum1ontheinternet March 8th, 2011 at 8:47 pm

    my names bob and my house is on mercury

  65. tanbir March 11th, 2011 at 8:45 pm

    plants cool

  66. molly March 13th, 2011 at 4:57 pm

    love or hate mercery

  67. mrs beiber March 14th, 2011 at 2:02 am

    yeah um……i thought this website wuz for kids and fazcts i have seen some names that i dont prefer please make ur name cool like mine juistin beiber is soooooooooooooooooooooooooooooooooooooooooooooooo hot and hes not gay

  68. melissa March 16th, 2011 at 7:05 pm

    so awsome i like this site because it has so mush facts :D
    hey guys do know i am from sweden XD

  69. Shadow March 17th, 2011 at 9:52 am

    Nice but you need more info like

    Mercury has no atmosphere

  70. ashley March 22nd, 2011 at 5:29 pm

    im going on chatrollete too :) ill see u

  71. ace March 23rd, 2011 at 12:06 am

    cool like kool aid

  72. ace March 23rd, 2011 at 12:09 am

    hey guys do know i am from mexico XD

  73. shut up March 24th, 2011 at 8:08 pm

    i hate earth ima terreist

  74. creg March 24th, 2011 at 8:10 pm

    i love science

  75. bubbly bubbles March 27th, 2011 at 10:39 pm

    i think this is so cool i want to be a scientist so bad. :)

  76. Calvin March 29th, 2011 at 12:10 pm

    I did a project on Mercury

  77. Jake Brown March 29th, 2011 at 10:35 pm

    these facts are boring what about how fast does a bullet fly on mercury

  78. unknown March 31st, 2011 at 8:32 pm

    I am at school doing the work bye

  79. unknown April 7th, 2011 at 9:24 am

    this is a really good website

  80. billybobjoe April 11th, 2011 at 9:42 pm

    i + computer= random comments :p

  81. hi April 13th, 2011 at 1:52 am

    good website. i need min and max temperature for my project though. :-)

  82. She Killed Kenny April 19th, 2011 at 3:58 pm

    -random coment-
    :P

  83. She Killed Kenny April 19th, 2011 at 4:10 pm

    letz be friends
    :)

  84. The OTHER One April 20th, 2011 at 4:16 pm

    OOOOOH! awesome website! now my project will be awesome…bwahahaha…

  85. skaterchic April 28th, 2011 at 5:48 pm

    Omg……this is so swicked…………………..

  86. sharmila May 4th, 2011 at 2:43 pm

    yooooooooooo! mecury is not hot , its cool

  87. starcat May 4th, 2011 at 8:00 pm

    sooooooooooooooooooooooooooooooooooooooooooooooooooooo cooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooollllllll thanks alot my project is gona rock!

  88. amanda and mason :) May 6th, 2011 at 8:11 pm

    omg. wow guys. people are so immature. names dont matter. ok? the only things that metters is what yall think abou the website! duh!

  89. amanda and mason= 8-29-07 May 6th, 2011 at 8:13 pm

    haha btw this website is awesome! :)

  90. Alexa Llanas May 10th, 2011 at 5:17 pm

    what is the distance from the sun to mercury in miles?

  91. turd May 23rd, 2011 at 6:33 pm

    i hate this it has none of the facts i want it is boring and im going to get an F

  92. ???????? June 2nd, 2011 at 5:51 am

    This website is cool :>

  93. thomas chivers June 17th, 2011 at 9:55 am

    you got a bmw i got a wmb

  94. BoB!!=] June 23rd, 2011 at 12:15 am

    dis its soo soo soo soo. . . . . . . . . . . . ummm . . . . . . . . cool! loove iht babey!

  95. BoB!!=] June 23rd, 2011 at 12:20 am

    yeahh braaah dis shiz is hott!!

  96. Dull July 20th, 2011 at 6:55 pm

    ThIs Is AwEsOmE I wAnNa Go To MeRcUrY.,.,.,.,.,..,.,..,.,..,.,.,,.,..,

  97. OJZZ August 4th, 2011 at 11:26 pm

    this infomation is WRONG i haave books and they r different to all dis info

  98. mel September 6th, 2011 at 4:22 pm

    hi i love the site

  99. sexytsamuels September 13th, 2011 at 3:16 am

    these are all great facts but i need more info for my soci project and even if this helps it is not enough

  100. Jordon Wheatley October 18th, 2011 at 2:44 pm

    I am in Ms. Kelleys class :)

  101. kaayylaa October 25th, 2011 at 6:06 pm

    i need moree factsss lol

  102. harley smith November 8th, 2011 at 3:33 pm

    this is a cool web site i have leard alot

  103. Sixkoh November 17th, 2011 at 6:13 pm

    awesome website

  104. Jake November 18th, 2011 at 1:41 am

    NEED MORE FACTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  105. catherin cate November 24th, 2011 at 2:04 am

    if i was from mercury i would be murcuryan lolzzzzzzzz!

  106. catherin cate November 24th, 2011 at 2:04 am

    good website luvin it!!!!!!!!!!!!

  107. cupcake November 27th, 2011 at 11:51 pm

    this gives me nothin 4 my science report >:/

  108. cupcake November 27th, 2011 at 11:53 pm

    im gonna fail my report so get more information !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  109. ......................................... December 6th, 2011 at 1:02 am

    this does not help me w/ my project!!!!!!!!!!!!!!!!X(

  110. keke lovely December 12th, 2011 at 4:09 pm

    ilove this website

  111. TYRA ND ANAIYA December 12th, 2011 at 7:00 pm

    nobodi cares unknow

  112. TYRA ND ANAIYA December 12th, 2011 at 7:02 pm

    heyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

  113. your mom December 13th, 2011 at 5:30 pm

    hey sweetie do you home work
    YOUR MOM!!!!!

  114. NOODLE ND CECE December 13th, 2011 at 6:18 pm

    HEY YALL

  115. NOODLE ND CECE December 13th, 2011 at 6:19 pm

    YALL UMMMMMMMMMMMM………….

  116. Pat December 14th, 2011 at 1:42 am

    This should give my granddaughter some good info for her 5th grade project, thanks for the website!

  117. michael is here lol im a 11 year old gal December 15th, 2011 at 2:05 am

    lolololollllllllllllllll killin meeeeee need mor facts ok!!!!!!!!!!!!!!!111111

  118. matthew December 16th, 2011 at 6:05 pm

    man this website goes hard just like the js i wear

  119. matthew December 16th, 2011 at 6:15 pm

    damn

  120. hi January 10th, 2012 at 6:23 pm

    hi

  121. steve January 10th, 2012 at 7:05 pm

    need more imfooooooooooooooooooooooooooooooooooooooooooooooooooooooo!!!!!!!!!!!!!!!!!!!!!

  122. jakerz January 11th, 2012 at 2:47 pm

    Amazin SYTEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! WT IZ DA MASS

  123. MR.INFERNO January 18th, 2012 at 5:17 pm

    MURCURY IS MY HOMELAND GEHE!

  124. MR.INFERNO January 18th, 2012 at 5:28 pm

    IM COOL IM THE CANDY, IM MURCURY IM A HOT PANEET

  125. Mr.neff neff January 18th, 2012 at 5:42 pm

    ollo,im mistah NEFF NEFF!,and mercorie is the closes to the sun gehehehehehe!!!!!

  126. shelbie January 23rd, 2012 at 5:58 pm

    alright., these comments are stupid.., juss sayin

  127. emmanuel January 24th, 2012 at 12:57 pm

    life will not be possible in mercury


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